layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x63
  RenderBlock {test} at (0,0) size 800x63
    RenderBlock {p} at (0,16) size 800x31
      RenderButton {button} at (2,2) size 629x27 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
        RenderBlock (anonymous) at (8,4) size 613x18
          RenderText {#text} at (0,0) size 613x17
            text run at (0,0) width 613: "Activating (e.g. holding the mouse button down on) this button should make it go green."